Battery charger transformer for a portable telephone



FIG. 1 is a top, front and left side perspective view of the battery charger transformer for a portable telephone showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a battery charger transformer for a portable telephone, as shown and described. 